Steam-engine



(No Model.) I

J. L. BOGBR'T.

STEAM ENGINE. No. 325,487. Patented Sept. 1, 1885.

N. PETERS Promunw a w. Washingium n. c.

UNITED STATES PATENT @rrion.

J QHN L. BOGERT, OF FLUSHING, NE\V YORK.

STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 325,487, datedSeptember 1, 1885.

Application filed January 31, 1885. (No model.)

To all whom it may concern:

Be it known that I, JOHN L. BOGERT, of Flushing, in the county of Queensand State of New York, have invented an Improvement in Steam-Engines, ofwhich .the following isa the respective portions m m a and are boltedspecification.

This invention is made for inclosing the cranks and crank-shaft of avertical duplex single-acting engine in such a manner that access can behad for removing the cranks, the connecting-rods, and the plungerswhenever required.

In the drawings, Figure l is an elevation of the engine endwise of thecrank-shaft, and Fig. 2 is a side elevation partially in section. Fig. 3is a section at the line m x, and Fig. 4 is an elevation of one of thehinges of the case.

The cylinders A and 13 stand vertical. They are preferably casttogether, and at G is the hub or flange for receiving the steampipe,

and at D the similar flange for the exhaustpipe. The valve is preferablybetween the cylinders, and made so that one valve serves for the twocylinders, and the piston or plunger of one is made to ascend as theother descends, and the piston and plunger in each cylinder may be madewith a wrist-pin, as shown in my Patent No. 309,686.

The wrist-pins are shown bydotted lines at c and the connecting-rods at(L The peculiar construction of the valve and ports connected therewithdoes not form any necessary part of the present application.

The cranks F G are placed at one hundred and eighty degrees apart, andthe crank-shaft H is usually providedwith the two drivingpulleys orfly-wheels KK outside its bearings. I do not in this applicationdescribe or claim any peculiarity in the construction of the cranks orof the pitman or connecting-rods.

My present invention relates especially to the peculiar constructionoftheinclosingcase and the parts that support the crank-shaft and engine.Y

At the lower ends of the cylinders A B are the flanges a, and these restupon and are bolted to the casing L, that is hollow and of aquadrangular form, the sides and ends being somewhat inclined, and castwith the case are the upper portions, m m n, of the journal boxes of thecrank-shaft. The portions m m are at the two ends of the case andproject principally inwardly, and the center boX,n,is upon a web orharm, that goes across the middle part of the case. The caps 0 0oarebelow on. These journal-boxes are usually filled with Babbitt-metal.

It will now be understood that the twin singleacting cylinder-enginebefore described is complete in itself and could be run if inverted, soas to stand upon the cylinderheads; but with engines especially that runat high speed it is preferable to place the cranks and shaft as low downas possible, so as to lesson vibration. In providing a support for theenginesl at the same time inclose and protect the cranks and parts fromdust and injury and provide for lubrication.

The box-shaped base is a casting of the requisite weight andstrength,with a bottom,

P, ends Q,and front and back, RR. The case is hinged to this base by thehinges S, which are preferably three in number, one in the middle andone near each end. Eachhinge is made of a bolt, 1, passing through thetwo lugs 2 2, or flanges cast on L,and also through an eye at the upperend of the. bolt 3, which eye is between the flanges, and the bolt 3passes through a lug, 4, upon the back R,and is secured by nut 6 belowthe lug. It is now to be understood that upon these hinges S the wholeof the engine can be swung back so as to be laid into a horizontal ornearly horizontal position to give access to the cranks, boxes, shaft,pitmen, or the pistons or plungers, the steam and exhaust pipes beingfirst disconnected or formed with swinging joints.

hen the engine is turned up vertically,it rests firmly upon the upperedges of the boxshaped base. It will be seen that the ends Q Q of thisbase are notched to allow for the reception of the journal-box caps, andthe surfaces 7 and S are preferably planed off, so as to cause the caseL to take a firm bearing upon the box-shaped base.

Adjacent to the planed surfaces the flanges at the top of the base andthe bottom of the case are recessed for the reception of a thick stripof felt, t, which is compressed by the weight of the engine and servesto efi'ectually exclude the atmosphere and any dust or foreignsubstances.

There is a central rib or frame, T,to strengthen the box-shaped base.

Whenever the necessary appliances for swinging over the engine areeasily provided the same may be availed of; but I usually provideprojecting lugs 12 upon the front, R, near the middle,and a swiveljoint-piece, 13, between them, through which passes the screw u, andthere are similar flanges or lugs, 14, projecting from the case L, andbetween these is a swiveled nut, l5,for the said screw u.

By rotating the nut within the swivel,or by revolving the screw to, thefront edge of the case will be raised and the engine swung back and heldat any point to which itvmay be moved, as indicated by the dotted lines,Fig. l. The reverse rotation of the screw closes the parts, and clampsthem firmly when the surfaces of the case and base come into contact.

There are three oil-cups, V, preferably cast and shaft, of a case boltedto the ends of the cylinders and provided with the journal-boxes orbearings and abox-shaped base upon which the edges of the case rest, andhinges to connect the case and base, substantially as set forth.

2. The combination, with the twin cylinders, connecting-rods, andcranks, of a case connected to the cylinders and provided with journalboxes or bearings, a box-shaped base upon which the lower edges of thecase rest, and an intervening strip of elastic material such as felt-toexclude dust,substantially as set forth.

3. The combination, with the engine and the caseinclosing the cranks ofa box-shaped base,hinges to connect the case and base, and a screw toclamp the parts together, or to swing the case open to give access tothe cranks and other parts, substantially as set JOHN L. BOGERT.

Witnesses:

G130. T. PINOKNEY, WILLIA G. MOTT.

